Los 6309
PUERTO RICO - UNITED STATES: 1873, Lettersheet with sender's mark from Arecibo, privately carried to St. Thomas, franked with US 1870, 10 c. brown for transportation with USBMSC, and posted at Danish PO with cds. "ST. THOMAS 14/7 1873" and adjacent red manuscript "10 c. paid" and boxed black "FRANCO." to New York, , cancelled "NEW YORK JUL 21" upon arrival; the entire some faults; very scarce, only few entires with the "FRANCO"-handstamp are recorded
